Forgot to add a note about installing the required dependency.

Includes a description of the project, example output, and license
information.

Add this flag to our `git log` calls in order to recognise mapped
contributors and properly calculate their commit word count and commit
days count.

Fix commit 83027388670b18143593eef5f171925c97464a3a.

* Uncomment commit message word count graph (I had commented it out
  because it takes a long time)
* Turn the 'days since first commit' graph back on an remove debug lines
* Remove spaces around date parse call in Ruby line
* Comment out Bash pipefail settings. This was causing the 'days since
  first commit' graph to fail and was part of the reason for the issue I
  was seeing in 83027388670b18143593eef5f171925c97464a3a. The trouble
  was that the `git log --pretty` call was returning a non-zero exit
  code (as far as I can tell), causing the program to exit before
  processing all the contributors. Remove the Bash settings as a stopgap
  because the script seems to work fine now.

Work in progress.

Working on showing a graph of the number of days since the first commit
for each committer. Getting hung up on the commit date for some reason.
It looks like it's exiting after getting the first date and I'm not sure
why. Going to commit what I have and go to bed or something and look at
this some other time.

Count the words in all non-merge commit messages for each contributor
and graph the totals.

To be more descriptive. Also since we'll be adding additional graphs to
the output, it makes sense to call this one what it is.

Through the magic of awk!

Capture the shortlog output so we can use it later on.